JP6984890B2 - Interlocking opening / closing sliding door and its construction method - Google Patents

Description

The present invention relates to an interlocking sliding door provided with an interlocking opening / closing unit that can be commonly applied to door panels having different panel widths, and a construction method thereof.

An interlocking sliding door provided with this type of interlocking opening / closing unit is known in Patent Document 1. In Patent Document 1, a sliding door interlocking device (interlocking opening / closing unit) is arranged in a storage groove provided at the lower end of the sliding door. The sliding door interlocking device is composed of a base main body, an intermediate base and a pulley group arranged inside the base main body, and a wire wound around the pulley group. The substrate main body is composed of a first substrate and a second substrate that can be expanded and contracted and slidable. The pulley group consists of the first and second pulleys supported by the first substrate, the third and fourth pulleys supported by the second substrate, and the fifth and sixth pulleys supported by the intermediate substrate. Become. One end of the wire is fixed to the second pulley, and the wire derived from the second pulley is wound around the first pulley via the fifth pulley and the second pulley. Further, the other end of the wire is fixed to the 4th pulley, and the wire drawn out from the 4th pulley is wound around the 3rd pulley via the 6th pulley and the 4th pulley and then inverted and guided. , Wrapped around the first pulley.

Japanese Unexamined Patent Publication No. 2013-139668

According to the sliding door interlocking device of Patent Document 1, the sliding door interlocking device can be commonly applied to sliding doors having different door widths by expanding and contracting the first substrate and the second substrate according to the door width of the sliding door. Therefore, each time the door width of the sliding door is different, the introduction cost of the sliding door interlocking device can be reduced as compared with the conventional device provided with the dedicated sliding door interlocking device suitable for the door width. However, since it is necessary to move the second pulley and the fifth pulley and the fourth pulley and the sixth pulley relative to each other according to the difference in the door width, the movement area of the former pulley pair and the movement area of the latter pulley pair are set to the base main body. It is necessary to secure it inside. Therefore, it is inevitable that the vertical dimension of the sliding door interlocking device becomes large, and the sliding door interlocking device cannot be accommodated inside the guide rail together with the runner body in the crane-type door panel. In addition, since the overlap margin between the door panels is large when the door panels are closed, it is inevitable that the cost of each sliding door will increase. Further, since the stretchable dimensional range of the first substrate and the second substrate is relatively small, there is a limit to the sliding doors that can be accommodated. In a state where the first substrate and the second substrate are expanded and contracted according to the width of the sliding door, it is necessary to tighten the screws in the main body of the substrate to fix both substrates so that they cannot be expanded and contracted, which requires extra work.

An object of the present invention is to provide an interlocking opening / closing sliding door that can be commonly applied to door panels having different panel widths and can cope with a wide range of differences in panel width, and a construction method thereof.

In the present invention, each of the plurality of door panels P1 and P2 is supported by a pair of runner bodies 3 and 4 that move along the guide rail 2 so as to be slidably openable and closable, and the door panel P2 as an assembly reference. The target is an interlocking opening / closing sliding door in which each door panel P1 / P2 is provided so as to be interlocking opening / closing via a pair of interlocking opening / closing units 6A / 6B arranged in. The interlocking opening / closing units 6A and 6B are supported by a guide shaft 30 whose one end is fixed to the runner block 17 of the runner body 4, a fixed pulley base 31 fixed to the guide shaft 30, and a guide shaft 30 so as to be reciprocally slidable. It includes a movable pulley base 32, an interval absorbing spring 33 that moves and urges the movable pulley base 32 in a direction away from the fixed pulley base 31, and a pulley structure. The pulley structure consists of a first pulley 35 rotatably supported by the runner block 17 and a second pulley 36 rotatably supported by one of the pulley bases 31 and 32 arranged on the tip side of the guide shaft 30. And the third pulley 37 rotatably supported by the other pulley base 32.31 arranged on the base end side of the guide shaft 30, and the transmission body 38 wound around these pulleys 35, 36, 37. I have. The transmission body 38 has a buffer portion 38A wound a plurality of times between the second pulley 36 and the third pulley 37 in both interlocking opening / closing units 6A and 6B, and the second pulley 36 continuously connected to the buffer portion 38A. The first interlocking portion 38B leading from the first pulley 35 to the first interlocking portion 38B and the second interlocking portion 38B are continuously inverted and guided by the first pulley 35 to reach the first pulley 35 of the other interlocking opening / closing unit 6B / 6A. It consists of an interlocking portion 38C. The runner body 3 of the door panel P1 to be initially operated is connected to the second interlocking portion 38C located between the first pulleys 35 and 35 of both interlocking opening / closing units 6A and 6B.

As shown in FIG. 1, the second pulley 36 is rotatably supported by a fixed pulley base 31 fixed to the tip of the guide shaft 30, and the third pulley 37 is a movable pulley base 32 arranged on the base end side of the guide shaft 30. It is rotatably supported by. The interval absorbing spring 33 made of a compression spring is arranged between the fixed pulley base 31 and the movable pulley base 32 in a state of being fitted on the guide shaft 30.

In the present invention, each of the plurality of door panels P1 and P2 is supported by a pair of runner bodies 3 and 4 that move along the guide rail 2 so as to be slidably openable and closable, and the door panel P2 as an assembly reference. The target is an interlocking opening / closing sliding door in which each door panel P1 / P2 is provided so as to be interlocking opening / closing via a pair of interlocking opening / closing units 6A / 6B arranged in. As shown in FIG. 17, the interlocking opening / closing units 6A and 6B include a guide shaft 30 whose one end is fixed to the runner block 17 of the runner body 4, and a movable pulley base 32 which is supported by the guide shaft 30 so as to be reciprocally slidable. The movable pulley base 32 is provided with an interval absorbing spring 33 for moving and urging the movable pulley base 32 in a direction away from the runner block 17, and a pulley structure. The interval absorbing spring 33 made of a compression spring is arranged between the runner block 17 and the movable pulley base 32 in a state of being fitted on the guide shaft 30. The pulley structure consists of a first pulley 35 rotatably supported by the runner block 17, a second pulley 36 rotatably supported by the movable pulley base 32, and a third pulley rotatably supported by the runner block 17. 37 and a transmission body 38 wound around these pulleys 35, 36, 37 are provided. The transmission body 38 has a buffer portion 38A wound a plurality of times between the second pulley 36 and the third pulley 37 in both interlocking opening / closing units 6A and 6B, and the second pulley 36 continuously connected to the buffer portion 38A. The first interlocking portion 38B leading from the first pulley 35 to the first interlocking portion 38B and the second interlocking portion 38B are continuously inverted and guided by the first pulley 35 to reach the first pulley 35 of the other interlocking opening / closing unit 6B / 6A. It consists of an interlocking portion 38C. The runner body 3 of the door panel P1 to be initially operated is connected to the second interlocking portion 38C located between the first pulleys 35 and 35 of both interlocking opening / closing units 6A and 6B.

As shown in FIG. 13A, the movable pulley base 32 has a first position in which the interval absorbing spring 33 extends to the maximum extension position, and as shown in FIG. 13B, the interval absorption spring 33 is in the minimum contraction position. It is guided and supported by a guide shaft 30 so that it can reciprocate between the second positions contracted to. The spring length of the space absorbing spring 33 in the free state is set to be larger than the moving length of the movable pulley base 32 between the first position and the second position.

The door panels P1 and P2 are supported by crane-type runner bodies 3 and 4 mounted on the guide rail 2. As shown in FIG. 1, the guide shafts 30 of the interlocking opening / closing units 6A and 6B, the fixed pulley base 31, the movable pulley base 32, and the space absorbing spring 33 are provided on the guide rail 2 together with the runner block 17 of the runner body 4. It is housed inside.

The pulley structure is arranged between the guide rail 2 and the door panels P1 and P2. The first pulley 35, the second pulley 36, and the third pulley 37 are arranged in a straight line, and a virtual center line Q passing through the center of each pulley is provided parallel to the center axis of the guide shaft 30. (See FIG. 6).

As shown in FIG. 7, the runner block 17 and the transmission body 38 of the runner body 3 mounted on the door panel P1 to be initially operated are the transmission body tangents of the first pulleys 35 and 35 of the pair of interlocking opening / closing units 6A and 6B. It is connected outside. The "transmitter circumscribed line" here means a common tangent line connecting a pair of first pulleys 35 and 35.

The second interlocking portion 38C of the transmission body 38 is connected to the receiving piece 48 of the connecting body 46 fixed to the runner block 17 of the runner body 3. The transmission body 38 is wound around the receiving piece 48 in a state of intersecting with each other, and the intersecting portion faces the tangent line of the transmission body.

It includes a first door panel P1 to be initially operated, a second door panel P2, and a third door panel P3. The runner block 17 of the first door panel P1 is connected to the second interlocking portion 38C of one transmission body 38 between the pair of first pulleys 35 and 35, and the third interlocking portion 38C of the other transmission body 38 is connected. The runner block 17 of the door panel P3 is connected.

In a state where the movable pulley base 32 of the pair of interlocking opening / closing units 6A and 6B is held at the first position by the space absorbing spring 33, the fixed pulley bases 31 and 31 adjacent to each other are connected by the connecting body 54. The pair of interlocking opening / closing units 6A / 6B and the runner bodies 4/4 can be integrated as one inseparable unit assembly.

In the interlocking opening / closing sliding door according to the present invention, a pair of interlocking opening / closing units 6A / 6B are arranged on the door panel P2 as an assembly reference so that the interlocking opening / closing units P1 and P2 can be interlocked and opened / closed. Further, the interlocking opening / closing units 6A and 6B move and urge the runner block 17, the fixed pulley base 31, the movable pulley base 32, and the first to third pulleys 35, 36, 37 supported by the movable pulley base 32. It was composed of an interval absorbing spring 33 and a conductor 38 wound around each of the pulleys 35, 36, and 37.

According to the interlocking opening / closing sliding door of the present invention as described above, when the pair of runner bodies 4 and 4 are attached to the door panel P2 in which the interlocking opening / closing units 6A and 6B are arranged, the urging force of the interval absorbing spring 33 is applied. While receiving, the movable pulley base 32 slides relative to the fixed pulley base 31, thereby changing the length dimension of the transmission body 38 in the buffer portion 38A and the transmission body 38 in the second interlocking portion 38C. The length dimension is changed. Therefore, according to the present invention, even when the spacing dimension of the interlocking opening / closing units 6A / 6B is changed according to the panel width of the door panel P2, the optimum tension is applied to the conductor 38 without adjusting the tension. Can be granted. Further, the buffer portion 38A is formed by winding the transmission body 38 around the second pulley 36 and the third pulley 37 a plurality of times, and the buffer portion 38A is provided for each of the pair of interlocking opening / closing units 6A and 6B, so that the movable pulley is a movable pulley. The length dimension of the transmitter 38, which is many times the slide amount of the table 32, can be absorbed by the buffer portion 38A, and the tension of the conductor 38 is optimized even for a wide range of door panels P2 having different panel widths. It is possible to assemble the interlocking opening / closing units 6A and 6B.

From the above, according to the interlocking opening / closing sliding door according to the present invention, the interlocking opening / closing sliding door can be applied in common to the door panels P2 having different panel widths, and can cope with a wide range of panel width differences, so that the cost can be reduced. Can be provided. Further, since the interlocking opening / closing units 6A and 6B are integrated with the runner bodies 4 and 4, it is not necessary to adjust the tension of the transmission body 38 at the time of construction, and the labor and time of construction can be greatly reduced. Since the movable pulley base 32 is slide-guided by the guide shaft 30 and the fixed pulley base 31 is supported by using the coaxial 30, the interlocking opening / closing unit is compared with the conventional sliding door interlocking device in which the base frame and the intermediate frame are indispensable. There is also the advantage that the overall structure of 6A and 6B can be made smaller and more compact.

The second pulley 36 was rotatably supported by the fixed pulley base 31 fixed to the tip of the guide shaft 30, and the third pulley 37 was rotatably supported by the movable pulley base 32. According to these interlocking opening / closing units 6A and 6B, the distance between the center of the first pulley 35 supported by the runner block 17 of the runner body 4 and the second pulley 36 supported by the fixed pulley base 31 is always constant, so that the movement is possible. It is possible to prevent the conductor 38 from loosening between the pulleys 35 and 36 when the pulley base 32 slides and moves. Further, since the interval absorption spring 33 is formed of a compression spring and arranged between the pulley bases 31 and 32, it is interlocked as compared with the case where the movable pulley base 32 is moved and urged by an urging body other than the compression spring. The structure of the opening / closing units 6A and 6B can be simplified and made compact.

The second pulley 36 is rotatably supported by the movable pulley base 32 arranged on the tip side of the guide shaft 30, and the third pulley 37 is rotatably supported by the runner block 17 which also serves as the fixed pulley base 31. According to such interlocking opening / closing units 6A / 6B, since the third pulley 37 can be supported by using the runner block 17, it is not necessary to separately provide a fixed pulley base 31, and the structure of the interlocking opening / closing units 6A / 6B can be increased accordingly. It can be simplified and reduced in cost. Further, since the interval absorption spring 33 is formed of a compression spring and arranged between the pulley bases 31 and 32, it is interlocked as compared with the case where the movable pulley base 32 is moved and urged by an urging body other than the compression spring. The structure of the opening / closing units 6A and 6B can be further simplified and made compact.

The movable pulley base 32 is guided and supported by a guide shaft 30 so that it can reciprocate between the first position and the second position, and the spring length of the space absorbing spring 33 in the free state is set between the first position and the second position. It is set to be larger than the moving length of the movable pulley base 32 of. According to the interlocking opening / closing units 6A and 6B, when the movable pulley base 32 slides from the second position side to the first position, the urging force of the interval absorbing spring 33 is surely applied to the movable pulley base 32. The movable pulley base 32 can be reliably followed and moved toward the first position while the tension is applied to the transmission body 38. Therefore, even when the interlocking opening / closing units 6A / 6B are applied to the door panel P2 having a small panel width, the interval absorption operation by the pulley structure can be performed in a stable state.

In the interlocking opening / closing sliding door in which the door panels P1 and P2 are supported by the hanger-type runner bodies 3 and 4, the guide shaft 30, the fixed pulley base 31, the movable pulley base 32, and the space absorbing spring 33 are the runner body 4. It is accommodated inside the guide rail 2 together with the runner block 17. According to such an interlocking opening / closing sliding door, most of the components of the interlocking opening / closing units 6A / 6B except the pulley structure can be housed inside the guide rail 2 to make the appearance of the interlocking opening / closing sliding door neat. In addition, since most of the components of the interlocking opening / closing units 6A and 6B can be assembled using the existing guide rail 2, the overall cost of the interlocking opening / closing sliding door is lower than when a new dedicated guide rail is prepared. Can be reduced.

The first pulley 35, the second pulley 36, and the third pulley 37 are arranged in a straight line, and the virtual center line Q passing through the center of each pulley is provided parallel to the center axis of the guide shaft 30. According to such interlocking opening / closing units 6A and 6B, the pulley structure can be simplified and the cost required for manufacturing can be reduced as compared with the conventional sliding door interlocking device. Further, since the entire pulley structure is arranged in the space between the guide rail 2 and the door panels P1 and P2, the transmission body 38 comes into contact with the moving parts such as the movable pulley base 32 and the space absorbing spring 33 and is worn out. Can be reliably prevented.

The runner block 17 and the transmission body 38 of the runner body 3 mounted on the door panel P1 are connected to each other outside the transmission body tangent line of the first pulleys 35 and 35 of the pair of interlocking opening / closing units 6A and 6B. In this way, when the runner block 17 and the transmission body 38 are connected outside the transmission body tangent line, the winding angle of the transmission body 38 on the first pulley 35 is 180 ° in the state where the runner body 3 is openly moved. It can be made smaller than that, and the overlap margin N of the door panels P1 and P2 adjacent to the front and rear can be minimized accordingly. In addition, the panel width of each door panel P1 and P2 can be reduced by the small overlap margin N, and the cost required for manufacturing the door panels P1 and P2 can be reduced. The width can be increased. Furthermore, it can be applied to a door panel with a thin frame without spoiling the aesthetic appearance.

The transmission body 38 was wound around the receiving piece 48 of the connecting body 46 in a state of intersecting with each other so that the intersecting portion faces the tangent line of the transmission body. When the intersecting portion faces the tangent line of the transmission body in this way, in the state where the runner body 3 is openly moved, the intersecting portion is moved to a position beyond the front-rear center passing through the center of the first pulley 35, and the first The winding angle of the transmission body 38 on the pulley 35 can be further reduced. Therefore, the overlap margin N of the door panels P1 and P2 adjacent to each other in the front and rear can be further reduced.

In the interlocking opening / closing sliding door provided with the first door panel P1, the second door panel P2, and the third door panel P3, the pair of interlocking opening / closing units 6A and 6B are arranged on the second door panel P2. Then, the runner block 17 of the first door panel P1 is connected to the second interlocking portion 38C of one transmission body 38, and the runner block 17 of the third door panel P3 is connected to the second interlocking portion 38C of the other transmission body 38. I tried to do it. According to such an interlocking opening / closing sliding door, by initially moving the first door panel P1 in the opening / closing direction, the second door panel P2 and the third door panel P3 can be interlocked and opened / closed in equal amounts. Further, when the left-right width of the opening frame 1 is constant, the opening width when the three door panels P1 to P3 are fully opened becomes large, so that the wheelchair can be easily entered and exited.

Adjacent fixed pulley bases 31 are connected to each other by a connecting body 54 so that the pair of interlocking opening / closing units 6A / 6B and the pair of runner bodies 4 can be integrated as one inseparable unit assembly. According to these interlocking opening / closing units 6A / 6B, it is only necessary to pack and transport the unit assembly in a properly assembled and adjusted state, so it is necessary to assemble the interlocking opening / closing units 6A / 6B from individual parts at the construction site. No. Further, at the time of construction, the entire unit assembly may be assembled to the guide rail 2, and since it is not necessary to perform troublesome adjustment such as tension adjustment, the labor and time of construction can be significantly reduced.

It is a front view of the main part of the interlocking opening / closing sliding door which concerns on Example 1 of this invention. It is an overall front view of the interlocking opening / closing sliding door which concerns on Example 1. FIG. It is a top view of the interlocking opening / closing sliding door which concerns on Example 1. FIG. It is a side view of the interlocking opening / closing sliding door which concerns on Example 1. FIG. It is a partially broken front view of the state where the interlocking opening / closing unit and the door panel are separated. It is explanatory drawing which saw the pulley structure of the interlocking opening / closing unit from a plane. It is a top view which shows the connection structure of a pulley structure and a runner body. FIG. 5 is a cross-sectional view taken along the line AA of FIG. It is a partially broken front view in the state where a pair of fixed pulley bases are connected. It is a top view which shows the assembly situation of a runner body, an interlocking opening / closing unit, and a guide rail. It is a side view which shows the assembly situation of a runner body and a transmission body. It is a front view of the state where the connecting body is separated from a pair of fixed pulley bases. It is a top view which shows the change width range of the door panel to which a pair of interlocking opening / closing units can be applied. It is a top view which shows the state which the door panel is fully opened. It is a top view of the interlocking opening / closing unit which concerns on Example 2 of this invention. It is a side view of the interlocking opening / closing sliding door which concerns on Example 2. FIG. It is a partially broken front view of the state where the interlocking opening / closing unit and the door panel are separated. It is a top view of only the main part of the interlocking opening / closing unit which concerns on Example 3 of this invention.

(Example 1) FIGS. 1 to 14 show Example 1 of the interlocking opening / closing sliding door according to the present invention. The front / rear, left / right, and up / down in the present invention follow the crossing arrows shown in FIGS. 2 and 3 and the front / back, left / right, and up / down character display displayed in the vicinity of each arrow. In FIG. 2, the interlocking opening / closing sliding doors are a guide rail 2 fixed to the upper frame portion of the opening frame 1, three pairs of runner bodies 3, 4, and 5 mounted inside the guide rail 2, and these runner bodies 3. It is composed of the first to third door panels P1, P2, P3 that are supported by 4 and 5 and are opened and closed by sliding, and the interlocking opening and closing units 6A and 6B that interlock and open and close these door panels P1, P2, P3. Rail.

Of the three door panels P1, P2, and P3, the first door panel (door panel) P1 is arranged on the front surface, the second door panel (door panel) P2 is arranged on the rear surface, and the second door panel P2 is arranged. A third door panel (door panel) P3 is arranged on the rear surface (see FIG. 3). Handles 7 are provided on the front and rear surfaces of the first door panel P1, and when the interlocking opening / closing sliding door is opened / closed from the front side and the rear surface side, the first door panel P1 is initially operated. The second door panel P2 in the center of the front and rear serves as an assembly reference for suspending the door panels P1, P2, and P3 from the guide rail 2. A handle 7 is also provided on the rear surface of the third door panel P3, and when the interlocking opening / closing sliding door is opened / closed from the rear surface side, the third door panel P3 can be initially operated. The door panels P1, P2, and P3 in this embodiment are made of wood-based door panels, and the external dimensions thereof are a panel width of 600 mm, a panel height of 2000 mm, and a panel thickness of 30 mm.

As shown in FIG. 4, anti-vibration rollers 9.9 are mounted on the left and right ends of the front and rear surfaces of the lower portion of the second door panel P2. The roller 9 on the front side guides the anti-vibration rail 10 attached to the lower end of the first door panel P1 so as to be relatively slidable, and the roller 9 on the rear surface side guides the anti-vibration rail 11 attached to the lower end of the third door panel P3. Is guided freely relative to the slide. Two magnet rollers 12 are provided so as to be able to appear and disappear on the floor surface facing the opening / closing area of the second door panel P2. The magnet roller 12 projects from the floor surface when the vibration stop rail 13 at the lower end of the second door panel P2 passes directly above, and guides the opening and closing of the second door panel P2 in a state of shaking.

Three rail frames 15 corresponding to the door panels P1, P2, and P3 are arranged on the upper frame of the opening frame 1, and each rail frame 15 is fastened and fixed to the opening frame 1 with a plurality of screws 16. .. The rail frame 15 for the second door panel P2 is arranged above the other rail frame 15 because the pulley structure described later is arranged between the rail frame 15 and the upper end of the door panel P2. The door panels P1, P2, and P3 are supported by a pair of runner bodies 3, 4, and 5 provided inside each rail frame 15, and are slidably opened and closed so as to be interlocked with each other.

In FIG. 5, the runner bodies 3, 4, and 5 are horizontally long runner blocks 17, four rollers 18 arranged in pairs on the left and right sides of the runner block 17, roller shafts 19, and door panels P1, P2. It is composed of a runner base 21 that is fitted and mounted on a holder (connecting portion) 20 fixed to the upper corner of the side end of P3, a runner shaft 22 that connects the runner block 17 and the runner base 21 and the like. Inside the runner base 21, a lock pin 24 that engages with the lock recess 23 of the holder 20, a release lever 25 that unlocks the lock pin 24, a height adjusting screw 26, and the like are provided. When the runner base 21 is attached to the holder 20, the lock pin 24 engages with the lock recess 23, and the runner bodies 3, 4, and 5 can be integrated with the door panels P1, P2, and P3.

As shown in FIG. 3, the interlocking opening / closing units 6A and 6B are incorporated in the runner body 4 of the second door panel P2. Although these interlocking opening / closing units 6A and 6B have different assembly directions with respect to the runner bodies 4 and 4, they have the same structure, so the same members are designated by the same reference numerals and the description thereof will be omitted. In FIG. 5, the interlocking opening / closing unit 6A has a metal guide shaft 30 whose one end is fixed to the runner block 17 of the runner body 4, a fixed pulley base (pulley base) 31 whose one end is fixed to the tip of the guide shaft 30, and a guide. It is composed of a movable pulley base (pulley base) 32 that is supported by a shaft 30 so as to be reciprocally slidable, an interval absorbing spring 33 that moves the movable pulley base 32 in a direction away from the fixed pulley base 31, and a pulley structure or the like. ..

The base end of the guide shaft 30 is non-rotatably fixed to the runner block 17 by using the roller shaft 19, and the tip of the guide shaft 30 and the fixed pulley base 31 use the pulley shaft 42 described later. It is fixed. The space absorbing spring 33 is composed of a compression spring and is arranged between the facing surfaces of the fixed pulley base 31 and the movable pulley base 32 in a state of being fitted on the guide shaft 30. The spring length of the space absorbing spring 33 in the free state is set to be larger than the moving length of the movable pulley base 32 between the first position and the second position. This is a state in which the spring force of the interval absorbing spring 33 is surely applied to the movable pulley base 32 and tension is applied to the transmission body 38 even when the movable pulley base 32 is the farthest from the fixed pulley base 31. This is to ensure that the movable pulley base 32 is moved toward the first position as it is. Along with this, even when the interlocking opening / closing units 6A / 6B are applied to the door panel 2 having a small panel width, the interval absorption operation due to the pulley structure is stably exhibited.

In the state where the interlocking opening / closing units 6A / 6B are incorporated in the rail frame 15, the guide shaft 30 of the interlocking opening / closing units 6A / 6B, the fixed pulley base 31, the movable pulley base 32, and the interval absorbing spring 33 are the runner body 4. It is housed inside the rail frame 15 together with the runner block 17 (see FIG. 5). According to the interlocking opening / closing units 6A and 6B, the guide shaft 30, the fixed pulley base 31, the movable pulley base 32, and the space absorbing spring 33 are housed inside the guide rail 2 together with the runner block 17 of the runner body 4. The rail. Therefore, most of the components of the interlocking opening / closing units 6A / 6B excluding the pulley structure can be accommodated inside the guide rail 2 to make the appearance of the interlocking opening / closing sliding door neat.

The pulley structure is arranged between the rail frame 15 and the second door panel P2, and the first to third pulleys 35, 36, 37 and the rope wound around these pulleys 35, 36, 37 ( Transmission body) 38. Specifically, the first pulley 35 is arranged on the outer lower surface of the runner block 17 and is rotatably supported by the block 17. The second pulley 36 is rotatably supported by a fixed pulley base 31 fixed to the tip of the guide shaft 30. The third pulley 37 is rotatably supported by a movable pulley base 32 facing the base end of the guide shaft 30.

A pulley recess for accommodating the first pulley 35 is formed on the outer lower surface of the runner block 17, and the first pulley 35 is rotatably supported by a bearing 40 provided in the center of the recess. The bearing 40 is fastened with a screw 41 screwed into the runner block 17. The second pulley 36 is rotatably supported by a bearing 40 arranged on the lower surface of the fixed pulley base 31, and the bearing 40 is fastened by a pulley shaft 42 that vertically passes through the fixed pulley base 31. Further, the third pulley 37 is rotatably supported by a bearing 40 arranged on the lower surface of the movable pulley base 32, and the bearing 40 is fastened with a screw 43 screwed into the movable pulley base 32 (see FIG. 8). .. As shown in FIG. 5, a connecting boss 45 provided with a connecting hole 44 is laterally projected on the lower half side of the side surface of the fixed pulley base 31. A connecting boss 53 having a screw hole 52 is provided laterally on the upper half side of the side surface of the movable pulley base 32 on the interlocking opening / closing unit 6B side (see FIG. 9). The first pulley 35 may be rotatably supported by the runner shaft 22 directly or via the bearing 40.

The rope 38 is wound around each pulley 35 to 37 of one interlocking opening / closing unit 6A, and then wound around each pulley 35 to 37 of the other interlocking opening / closing unit 6B, and its start and end are connected bodies described later. It is fixed to 46. As shown in FIG. 6, in the interlocking opening / closing unit 6A, the rope 38 is wound around the first pulley 35 as indicated by reference numeral a1, and then wound around the second pulley 36 and the third pulley 37 for three round trips ( a2 to a4), and the rope 38 finally wound around the second pulley 36 is reversely guided by the first pulley 35.

The rope 38 reversely guided by the first pulley 35 is wound around the first pulley 35 of the other interlocking opening / closing unit 6B, and then is wound around the second pulley 36 and the third pulley 37 in the same manner as the interlocking opening / closing unit 6A. The rope 38, which is wound three times back and forth (b1 to b4) and is finally wound around the second pulley 36, is reversely guided by the first pulley 35. The start and end of the rope 38 are fixed to the connecting body 46 fixed to the runner body 5 of the third door panel P3, and the middle part of the rope 38 is fixed to the connecting body 46 fixed to the runner body 3 of the first door panel P1. It is fixed. From the above, the transmission body 38 is continuously connected to the buffer portion 38A wound between the second pulley 36 and the third pulley 37 a plurality of times and the buffer portion 38A in both interlocking opening / closing units 6A and 6B. The first interlocking portion 38B from the two pulleys 36 to the first pulley 35 and the first interlocking portion 38B are continuously inverted and guided by the first pulley 35 to reach the first pulley 35 of the other interlocking opening / closing unit 6B / 6A. It is provided with a second interlocking portion 38C. The runner bodies 3 and 5 of the front and rear door panels P1 and P3 and the rope 38 are connected to the rope tangent line between the pair of first pulleys 35 and 35 located at the side ends of the pair of interlocking opening / closing units 6A and 6B. ) Is connected outside.

As shown in FIG. 7, the connecting body 46 is formed in an oval shape in a plan view, and one end thereof is fixed to the lower surface of the runner block 17 with a screw 47. As shown in FIG. 4, the other end of the connecting body 46 is projected toward the lower surface of the central rail frame 15, and a cupcake-shaped receiving piece 48 is projected downward on the lower surface thereof. Screws 49 for fixing the rope 38 are screwed on both sides of the piece 48. The start end and the end end of the rope 38 circulate around the receiving piece 48 in a state of intersecting each other, and then are fixed in a state of being wound around a screw 49. Further, the middle portion of the rope 38 is fixed in a state of being wound around two screws 49 after circling around the receiving piece 48 in a state of crossing each other.

In the pulley structure, the first pulley 35, the second pulley 36, and the third pulley 37 are arranged in a straight line, and the virtual center line Q (see FIG. 6) passing through the center of each pulley is the center axis of the guide shaft 330. It is provided in a state of being parallel to the guide shaft 30 and located below the guide shaft 30. According to such interlocking opening / closing units 6A and 6B, the pulley structure can be simplified and the cost required for manufacturing can be reduced as compared with the conventional sliding door interlocking device. Further, since the entire pulley structure is arranged in the space between the guide rail 2 and the door panels P1, P2, and P3, the transmission body 38 comes into contact with the moving parts such as the movable pulley base 32 and the space absorbing spring 33. It can surely prevent wear.

In order to save the labor of construction at the construction site, the pair of interlocking opening / closing units 6A / 6B and the fixed pulley bases 31 adjacent to each other are connected by a bolt (connecting body) 54, and the pair of interlocking opening / closing units 6A / 6B and the runner are connected. The bodies 4 and 4 can be integrated as one inseparable unit assembly. For details, as shown in FIG. 9, the connecting boss 45 provided on the fixed pulley base 31 on the interlocking opening / closing unit 6A side and the connecting boss 53 provided on the fixed pulley base 31 on the interlocking opening / closing unit 6B side are joined vertically. By screwing the bolt 54 inserted into the connecting hole 44 from below into the screw hole 52, the pair of interlocking opening / closing units 6A and 6B are integrated into a unit assembly. According to these interlocking opening / closing units 6A / 6B, it is only necessary to pack and transport the unit assembly in a properly assembled and adjusted state, so it is necessary to assemble the interlocking opening / closing units 6A / 6B from individual parts at the construction site. No. Further, at the time of construction, the entire unit assembly may be assembled to the guide rail 2, and since it is not necessary to perform troublesome adjustment such as tension adjustment, the labor and time of construction can be significantly reduced. Further, it is not necessary to adjust the tension acting on the rope 38.

(Construction procedure)
When suspending the first door panel P1 to the third door panel P3 at the construction site, the front connecting body 46 is attached to the lower surface of the runner block 17 of the first door panel P1 which is initially operated as shown in FIG. It is fastened with a screw 47 to connect the runner body 3 and the rope 38. Further, the connecting body 46 on the rear side is fastened to the lower surface of the runner block 17 of the third door panel P1 with a screw 47 to connect the runner body 5 and the rope 38 (first process). Next, as shown in FIG. 10, three sets of runner bodies 3, 4, and 5 corresponding to the door panels P1, P2, and P3 and a pair of interlocking opening / closing units 6A and 6B are mounted on the rail frames 15 of the guide rail 2. Then, each rail frame 15 is fixed to the opening frame 1 (second process). At this time, since it is only necessary to insert the entire unit assembly into the rail frame 15 for the second door panel P2 from one end of the rail frame 15 and mount it, the labor of assembling can be remarkably saved. After the guide rail 2 is fixed to the opening frame 1, the bolt 54 is separated from the connecting bosses 45 and 53 as shown in FIG. As a result, the pair of interlocking opening / closing units 6A and 6B can move together with the runner bodies 4 and 4, respectively.

Next, with the second door panel P2 upright, as shown in FIG. 5, the runner stand 21 of one of the runner bodies 4 to which the interlocking opening / closing units 6A and 6B are connected is attached to the holder of the second door panel P2. The runner stand 21 of the other runner body 4 is attached to the holder 20 of the second door panel P2, and the second door panel P2 is hung (third process). Finally, in the same manner for the first door panel P1 and the third door panel P3, the runner stand 21 of the runner bodies 3.5 is attached to the holders 20 of the first door panel P1 and the third door panel P3, and each house is attached. The suspension of the panels P1, P2, and P3 is completed (fourth process). The construction procedure does not necessarily have to be performed by the above procedure, and for example, the second process, the third process, the first process, and the fourth process can be performed in this order.

According to the interlocking opening / closing sliding door configured as described above, as shown in FIG. 13 (a), the first position where the interval absorbing spring 33 is extended to the maximum extension position and the interval as shown in FIG. 13 (b). The movable pulley base 32 can be moved between the second positions where the absorption spring 33 contracts to the minimum contraction position. Further, the movable pulley base 32 slides and moves by simply mounting the pair of runner bodies 4 on the door panel P2, and the facing distance L between the fixed pulley base 31 and the movable pulley base 32 is changed to change the panel width of the door panel P2. The difference can be absorbed immediately without the need to adjust the tension. Further, when the first door panel P1 is initially moved in the opening / closing direction, the second door panel P2 and the third door panel P3 can be opened / closed in equal amounts in an interlocking manner, and the left-right width of the opening frame 1 is constant. When the three door panels P1 to P3 are fully opened, the opening width becomes large, so that the wheelchair can be easily entered and exited.

Specifically, since the rope 38 is wound around the second pulley 36 and the third pulley 37 provided on the fixed pulley base 31 and the movable pulley base 32 for three round trips to form the buffer portion 38A, each door panel is formed. When the panel widths of P1, P2, and P3 change, the amount of change in the facing distance L between the fixed pulley base 31 and the movable pulley base 32 becomes one-third of the amount of change in the panel width. Further, since the door panel 2 is provided with a pair of interlocking opening / closing units 6A / 6B, the amount of movement of the movable pulley base 32 in each interlocking opening / closing unit 6A / 6B is halved. As a result, as a whole, the amount of change in the facing distance L between the fixed pulley base 31 and the movable pulley base 32 is one sixth of the amount of change in the panel width. Therefore, the interlocking opening / closing units 6A and 6B can be commonly applied to a wide range of door panels having a small panel width and a door panel having a large panel width. In the interlocking opening / closing units 6A / 6B described in this embodiment, when the minimum value of the applied panel width is 600 mm, the interlocking opening / closing units 6A / 6B are common to the door panels having a panel width of 600 to 1440 mm. Can be applied. In this case, the change width range M of the door panel that can be commonly applied is 840 mm. Although it can be theoretically applied to a door panel having a smaller panel width, it is practically preferable that the panel width of the door panel is 400 mm or more. Incidentally, the sliding door interlocking device described in Patent Document 1 has already been commercialized and put on the market (interlocking sliding door metal fitting SU-100), but according to the specifications, it can be applied to a door panel having a door width of 450 to 740 mm. However, the range of change of the door panel that can be applied in common is not large.

Further, in the interlocking opening / closing sliding door having the above configuration, the runner bodies 3.5 and the rope 38 are connected to each other outside the rope circumscribed lines of the first pulleys 35/35 of the pair of interlocking opening / closing units 6A / 6B. In the state where the body 3 is openly moved, the winding angle of the transmission body 38 on the first pulley 35 can be reduced to less than 180 ° as shown in FIG. 7. Therefore, when the door panels P1, P2, and P3 are closed from the fully open position (state shown in FIG. 14) to the fully closed position (state shown in FIG. 3), the front and rear adjacent door panels P1, P2, and P3 are closed. The overlap allowance N (see FIG. 7) can be minimized. Further, the rope 38 was wound around each receiving piece 48 in a state of intersecting with each other so that the intersecting portion faced the circumscribed line of the rope. When the intersecting portion faces the circumscribed line of the rope in this way, in the state where the runner body 3 is openly moved, the intersecting portion is moved to a position beyond the front-rear center passing through the center of the first pulley 35, and the first The winding angle of the transmission body 38 on the pulley 35 can be further reduced. The overlapping allowance N of the door panels P1, P2, and P3 in this embodiment is 30 mm, and the panel width of each door panel P1, P2, and P3 is reduced by the smaller overlap allowance N, so that the door panels P1, P2, and P3 have overlapping allowances N. In addition to being able to reduce the cost required for manufacturing, the opening width at full opening can be increased by the smaller overlap margin N. Furthermore, it can be applied to a door panel with a thin frame without spoiling the aesthetic appearance. Further, the rope 38 was wound around each receiving piece 48 in a state of intersecting with each other so that the intersecting portion faced the circumscribed line of the rope. When the intersecting portion faces the circumscribed line of the rope in this way, in the state where the runner body 3 is openly moved, the intersecting portion is moved to a position beyond the front-rear center passing through the center of the first pulley 35, and the first The winding angle of the transmission body 38 on the pulley 35 can be further reduced. Therefore, the overlap margin N of the door panels P1 and P2 adjacent to each other in the front and rear can be further reduced. Incidentally, the overlapping allowance N of the door panels in the interlocking sliding door fitting SU-100 described above is 90 mm.

Further, in the interlocking opening / closing units 6A / 6B of the first embodiment, the distance between the centers of the first pulley 35 supported by the runner block 17 of the runner body 4 and the second pulley 36 supported by the fixed pulley base 31 is always constant. Therefore, when the movable pulley base 32 slides and moves, it is possible to prevent the rope 38 from loosening between the pulleys 35 and 36. Further, since the interval absorption spring 33 is formed of a compression spring and arranged between the pulley bases 31 and 32, it is interlocked as compared with the case where the movable pulley base 32 is moved and urged by an urging body other than the compression spring. The structure of the opening / closing units 6A and 6B can be simplified and made compact.

In the construction method of the interlocking opening / closing sliding door, the rope 38 is connected to the runner block 17 of the door panel P1 to be initially operated, each component is assembled to the guide rail 2 according to a certain procedure, and the rail 2 is fixed to the runner body. By mounting the runner stand 21 of 4 on the holder 20 and mounting the runner stand 21 of the runner body 3 on the holder 20, a series of construction work can be easily completed without any alignment or adjustment work. Therefore, the labor and time required for construction can be significantly reduced, and even an unskilled worker can accurately construct an interlocking opening / closing sliding door. At the time of construction, as shown in FIG. 3, left and right hand when the door panel P to be initially moved is opened from the closed position to the right and when the door panel P is opened from the closed position to the left. Since there is a difference, it is necessary to connect the runner block 17 and the rope 38 while considering the difference. In that respect, according to the construction method described in the first embodiment, there is no need to change the assembling direction or the assembling posture of the interlocking opening / closing units 6A / 6B, and the door panel P is simply moved to the closed position side to be initially operated. The connecting body 46 may be fixed to the runner block 17 of the positioned runner body 4, and the rope 38 may be connected to the connecting body 46. Therefore, anyone can easily and accurately handle the construction work of the interlocking opening / closing sliding door that has a difference. In addition, the interlocking opening / closing units 6A and 6B can be applied to both the right-handed interlocking opening / closing sliding door and the left-handed interlocking opening / closing sliding door in the same state without any difference. It also has the advantage of reducing labor. When inspecting and maintaining the interlocking opening / closing units 6A and 6B, the runner stand 21 of the runner body 3 is separated from the holder 20, the rope 38 is removed from the runner block 17, and the runner stand 21 of the runner body 4 is removed from the holder 20. By separating, the interlocking opening / closing units 6A and 6B can be exposed for easy inspection and maintenance.

In the second process, if one unit assembly in which the pair of interlocking opening / closing units 6A / 6B and the runner body 4 are integrated is assembled to the guide rail 2, it takes time and effort to individually assemble each interlocking opening / closing unit 6A / 6B. Can be omitted. Further, after the second process, the connecting body 54 is separated from the fixed pulley base 31 so that the runner body 4 and the interlocking opening / closing units 6A and 6B can be individually moved to match the panel width of the door panel P2. By performing the third process in this state, the door panel P2 can be easily suspended.

(Example 2) FIGS. 15 to 17 show Example 2 of the interlocking opening / closing sliding door according to the present invention. As shown in FIG. 15, the interlocking opening / closing sliding door in the second embodiment is composed of a first door panel P1 and a second door panel P2 that can be opened and closed by sliding. Further, the runner block 17 of the runner body 4 that supports the second door panel P2 also serves as the fixed pulley base 31, and the movable pulley base 32 is arranged on the tip side of the guide shaft 30, and the base 32 and the runner block 17 are arranged. The interval absorption spring 33 is arranged between the two (see FIG. 17). A washer 62 for preventing the movable pulley base 32 from coming off is fixed to the tip of the guide shaft 30 with a screw 63. The movable pulley base 32 is supported by a roller 64 that rolls along the rail frame 15.

The pulley structure is composed of the first to third pulleys 35, 36, 37 and the rope (transmitter) 38 wound around these pulleys 35, 36, 37, as in the pulley structure of the first embodiment. be. The first pulley 35 is arranged on the outer lower surface of the runner block 17 and is rotatably supported by the block 17. The second pulley 36 is rotatably supported by the movable pulley base 32, and the third pulley 37 is arranged on the inner lower surface of the runner block 17 and is rotatably supported by the block 17. Each of the first to third pulleys 35, 36, and 37 is rotatably supported by a bearing 40, and the bearing 40 of the first pulley 35 is fastened with a screw 41 screwed into the runner block 17. Further, the bearing 40 of the second pulley 36 is fastened with a screw 57 screwed into the movable pulley base 32, and the bearing 40 of the third pulley 37 is fastened with a screw 58 screwed into the runner block 17.

Similar to the pulley structure of the first embodiment, the rope 38 is wound around the pulleys 35 to 37 of one interlocking opening / closing unit 6A, and then wound around the pulleys 35 to 37 of the other interlocking opening / closing unit 6B. There is. The start and end of the rope 38 are fixed to the rope fitting 60 fixed to the guide rail 2 with screws 61. Further, the middle portion of the rope 38 is fixed to the connecting body 46 fixed to the runner block 17 of the runner body 3 of the first door panel P1 in a state of being wound around two screws 49. The runner bodies 3.5 and the rope 38 of the front and rear door panels P1 and P3 in the second embodiment are the pair of first pulleys 35 located at the side ends of the pair of interlocking opening / closing units 6A and 6B as in the first embodiment. -Connected outside the rope circumscribed line between 35 (see FIG. 16). Other than the above, it is the same as the interlocking opening / closing sliding door described in the first embodiment, so the same members are designated by the same reference numerals and the description thereof will be omitted. The same shall apply in Example 3.

According to the interlocking opening / closing sliding door of the second embodiment, the interval absorption spring 33 extends to the maximum extension position, and the movable pulley base 32 contracts to the first position where the washer 62 receives and the interval absorption spring 33 contracts to the minimum contraction position. The movable pulley base 32 can be moved between the second positions to cope with the difference in panel width between the door panels P1 and P2. That is, a pair of runner bodies 4 mounted on the door panel P2.
The difference in the adjacent spacing of 4 can be absorbed by changing the facing spacing between the fixed pulley base 31 and the movable pulley base 32. Further, since the third pulley 37 can be supported by using the runner block 17, it is not necessary to separately provide the fixed pulley base 31, and the structure of the interlocking opening / closing units 6A and 6B can be simplified and the cost can be reduced accordingly.

(Example 3) FIG. 18 shows Example 3 of the interlocking opening / closing sliding door according to the present invention. The interlocking opening / closing sliding door in the third embodiment is different from the interlocking opening / closing sliding door in the first embodiment in that the middle portion of the rope 38 is fixed by a screw 49 screwed into the runner block 17 of the runner body 3 of the first door panel P1. Also in the third embodiment, the runner bodies 3 and 5 of the door panels P1 and P3 and the rope 38 are rope circumscribed lines between the pair of first pulleys 35 and 35 located at the side ends of the pair of interlocking opening / closing units 6A and 6B. Is connected outside.

In the above embodiment, the rope 38 may be wound a plurality of times around the second pulley 36 and the third pulley 37. Further, each of the pulleys 35, 36, and 37 does not have to be composed of one pulley, and may be configured by assembling a plurality of thin unit pulleys in a multi-stage manner. In that case, the peripheral surface of the pulleys may be configured. The rope 38 can be more reliably eliminated from being entangled. The space absorbing spring 33 can be formed of a tension spring. In that case, for example, the guide shaft 30 may be formed of a tubular shaft having a slit formed in the peripheral surface, and the tension spring may be arranged inside the guide shaft 30. Further, the movable pulley base 32 may be guided and supported so as to be reciprocally slidable by a slit formed in the center of the front and rear of the round shaft-shaped guide shaft 30. The interlocking opening / closing sliding door according to the present invention can be applied to a sliding door of a door roller type as well as a sliding door of a hanging wheel type. The rope 38 having a pulley structure does not have to be one, and two ropes of the same length can be used.

1 Opening frame 2 Guide rails 3 ・ 4 ・ 5 Runner body 6A ・ 6B Interlocking opening / closing unit 15 Rail frame 17 Runner block 20 Holder (connecting part)
21 Runner stand 30 Guide shaft 31 Fixed pulley base 32 Movable pulley base 33 Spacing absorption spring 35 1st pulley 36 2nd pulley 37 3rd pulley 38 Transmission body (rope)
38A Buffer part 38B 1st interlocking part 38C 2nd interlocking part 46 Connecting body P1 1st door panel P2 2nd door panel P3 3rd door panel Q Virtual center line L Opposing distance between fixed pulley base and movable pulley base M Door panel Change width range N Overlapping allowance of door panels

Claims (10)

Each of the plurality of door panels (P1 and P2) is supported by a pair of runner bodies (3 and 4) that move along the guide rail (2) so that they can be opened and closed by sliding. An interlocking opening / closing sliding door in which each door panel (P1 / P2) is provided so as to be interlocking opening / closing via a pair of interlocking opening / closing units (6A / 6B) arranged on the panel (P2).
The interlocking opening / closing unit (6A / 6B) has a guide shaft (30) whose one end is fixed to the runner block (17) of the runner body (4) and a fixed pulley base (31) whose one end is fixed to the guide shaft (30). A movable pulley base (32) that is supported by a guide shaft (30) so as to be reciprocally slidable, and an interval absorbing spring (33) that moves and urges the movable pulley base (32) away from the fixed pulley base (31). , Equipped with a pulley structure,
The pulley structure is rotatable by the first pulley (35) rotatably supported by the runner block (17) and one of the pulley bases (31 and 32) arranged on the tip side of the guide shaft (30). The second pulley (36) supported by the guide shaft (30) and the third pulley (37) rotatably supported by the other pulley base (32, 31) arranged on the proximal end side of the guide shaft (30). It is equipped with a transmission body (38) that is wound around the pulley (35, 36, 37) of the
The transmission body (38) has a buffer portion (38A) wound a plurality of times between the second pulley (36) and the third pulley (37) in both interlocking opening / closing units (6A / 6B), and a buffer. A first interlocking portion (38B) from the second pulley (36) to the first pulley (35) continuously to the portion (38A) and a first pulley (35) continuously to the first interlocking portion (38B). It consists of a second interlocking part (38C) that is inverted and guided to the first pulley (35) of the other interlocking opening / closing unit (6B / 6A).
The runner body (3) of the door panel (P1) to be initially operated is connected to the second interlocking portion (38C) located between the first pulleys (35 and 35) of both interlocking opening / closing units (6A and 6B). An interlocking sliding door that is characterized by being The second pulley (36) is rotatably supported by a fixed pulley base (31) fixed to the tip side of the guide shaft (30), and the third pulley (37) is arranged on the base end side of the guide shaft (30). It is rotatably supported by a movable pulley base (32) and is supported.
The interlocking according to claim 1, wherein the interval absorbing spring (33) made of a compression spring is arranged between the fixed pulley base (31) and the movable pulley base (32) in a state of being fitted on the guide shaft (30). Opening and closing sliding door. Each of the plurality of door panels (P1 and P2) is supported by a pair of runner bodies (3 and 4) that move along the guide rail (2) so that they can be opened and closed by sliding. An interlocking opening / closing sliding door in which each door panel (P1 / P2) is provided so as to be interlocking opening / closing via a pair of interlocking opening / closing units (6A / 6B) arranged on the panel (P2).
The interlocking opening / closing unit (6A / 6B) has a guide shaft (30) whose one end is fixed to the runner block (17) of the runner body (4) and a movable pulley base that is slidably supported by the guide shaft (30). It is provided with (32), an interval absorbing spring (33) that moves and urges the movable pulley base (32) away from the runner block (17), and a pulley structure.
Interval absorbing spring consisting of a compression spring (33) is arranged between the guide shaft runner block (17) and the movable pulley stand in a state fitted around (30) (32),
The pulley structure consists of a first pulley (35) rotatably supported by a runner block (17), a second pulley (36) rotatably supported by a movable pulley base (32), and a runner block (17). It is equipped with a third pulley (37) that is rotatably supported by the pulley and a transmission body (38) that is wound around these pulleys (35, 36, 37).
The transmission body (38) has a buffer portion (38A) wound a plurality of times between the second pulley (36) and the third pulley (37) in both interlocking opening / closing units (6A / 6B), and a buffer. A first interlocking portion (38B) from the second pulley (36) to the first pulley (35) continuously to the portion (38A) and a first pulley (35) continuously to the first interlocking portion (38B). It consists of a second interlocking part (38C) that is inverted and guided to the first pulley (35) of the other interlocking opening / closing unit (6B / 6A).
The runner body (3) of the door panel (P1) to be initially operated is connected to the second interlocking portion (38C) located between the first pulleys (35 and 35) of both interlocking opening / closing units (6A and 6B). An interlocking sliding door that is characterized by being The movable pulley base (32) can be reciprocated between the first position where the interval absorption spring (33) is extended to the maximum extension position and the second position where the interval absorption spring (33) is contracted to the minimum contraction position. It is guided and supported by a guide shaft (30).
2. Interlocking opening and closing sliding door. Each door panel (P1 and P2) is supported by a crane-type runner body (3 and 4) mounted on the guide rail (2).
The guide shaft (30) of each interlocking opening / closing unit (6A / 6B), the fixed pulley base (31), the movable pulley base (32), and the interval absorption spring (33) form the runner block (4) of the runner body (4). The interlocking opening / closing sliding door according to claim 1 or 2 , which is housed inside the guide rail (2) together with 17). The pulley structure is arranged between the guide rail (2) and the door panel (P1 and P2).
The first pulley (35), the second pulley (36), and the third pulley (37) are arranged in a straight line, and the virtual center line (Q) passing through the center of each pulley is the center of the guide shaft (30). The interlocking opening / closing sliding door according to any one of claims 1 to 5, which is provided parallel to the axis. The runner block (17) and the transmission body (38) of the runner body (3) mounted on the door panel (P1) to be initially operated are the first pulleys (35/35) of the pair of interlocking opening / closing units (6A / 6B). The interlocking opening / closing sliding door according to any one of claims 1 to 6, which is connected outside the rope circumscribed line of the rope. The second interlocking portion (38C) of the transmission body (38) is connected to the receiving piece (48) of the connecting body (46) fixed to the runner block (17) of the runner body (3).
The interlocking opening / closing sliding door according to claim 7, wherein the transmission body (38) is wound around the receiving piece (48) in a state of intersecting with each other, and the intersecting portion faces the rope circumscribed line. It is equipped with a first door panel (P1), a second door panel (P2), and a third door panel (P3) that are initially operated.
The pair of interlocking opening / closing units (6A / 6B) are arranged on the second door panel (P2), and the second interlocking portion (38C) of one transmission body (38) between the pair of first pulleys (35 / 35) is provided. ) Is connected to the runner block (17) of the first door panel (P1), and the runner block (17) of the third door panel (P3) is connected to the second interlocking portion (38C) of the other transmission body (38). The interlocking opening / closing sliding door according to any one of claims 1 to 8. In a state where the movable pulley bases (32) of the pair of interlocking opening / closing units (6A / 6B) are held in the first position by the spacing absorption springs (33), the fixed pulley bases (31 / 31) adjacent to each other are connected to each other. The second aspect of claim 2, wherein the pair of interlocking opening / closing units (6A / 6B) and the runner body (4.4) are integrated as one inseparable unit assembly by connecting them with the body (54). Interlocking opening and closing sliding door .

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